MP4 → 3GP

Guqula Eyakho MP4 kuya 3GP amafayela kalula

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Ukulayisha

Indlela yokuguqula MP4 kuya 3GP

Isinyathelo 1: Layisha eyakho MP4 amafayela usebenzisa inkinobho engenhla noma ngokuhudula bese uphonsa.

Isinyathelo 2: Chofoza inkinobho ethi 'Guqula' ukuze uqale ukuguqulwa.

Isinyathelo 3: Landa i-version yakho 3GP amafayela

MP4 kuya 3GP Imibuzo Evame Ukubuzwa Yokuguqulwa

Ngiyifaka kanjani i-MP4 ku-3GP ngaphandle kokulahlekelwa yikhwalithi yevidiyo?

Ukufaka ifayela lakho MP4 futhi hlela Quality to High Quality in the conversion options. That re-encodes the video at the highest quality setting (CRF 18 for H.264 and VP9 output), which keeps the most detail at the cost of a larger file. The default, Balanced, uses the standard setting. The 3GP output gets a codec its container supports: H.264 for MP4, MOV and MKV, VP9 for WebM. Kuyinto encane kakhulu ukuthi wonke ama-MP4 aphilayo ayizividiyo ze-H.264 ezinesandi se-AAC; isiqoqi sigcina ngokusemthethweni i-HEVC, AV1 ne-VP9. 3GP igcina H.263 noma MPEG-4 Ingxenye 2 ividiyo nge AMR narrowband ukukhuluma umsindo, zonke tuned for minimal bitrate hhayi quality.

Ingabe MP4 ingaguqulwa ibe 3GP ngaphandle kokuphinde ubhale kabusha ividiyo?

Hayi, hhayi kule khasi. MP4 ne 3GP zihlanganisa isakhiwo esifanayo esingaphansi, kodwa umguquli uphinde uhlanganise ividiyo lezinhlamvu ezimbili endaweni yokukopisha umsinga, ngakho-ke kuthatha isikhathi eside kunalokho okushintshayo kwebhokisi futhi isithombe sicindezelwe futhi. Khetha Ubunjani Obuphezulu ngezansi kweBunjani ukuze ugcine iminingwane eminingi. MP4 yi ISO/IEC 14496-14, ejwayelekile ngo-2001 futhi ivela ku-QuickTime box layout MOV isebenzisa. I-3GP iyibhokisi le-3GPP elijwayelekile lefoni ephathekayo, lapho ividiyo idinga ukuhambisana ne-176x144 screen ne-2G data plan.

Yini ezoba nezinhlamvu zesihloko esingezansi kuhele lwami MP4?

Zilahlekile. i-3GP ayinaso isingeniso esilula sokudlulisa isingeniso ukuze igcine, futhi umguquli awuwukhiphanga kusithombe noma awuthumeli njengefayela elihlukile. Uma ufuna, khipha isingeniso ku-.srt ifayela ngethuluzi ledesktop njenge-ffmpeg noma i-MKVToolNix ngaphambi kokuguqula, futhi ulayishe le fayela eduze kwe-3GP kumdlali wakho. I-3GP iphele ngezinhlamvu eziphansi kanye nesandi sokukhuluma esisezingeni eliphansi; ukuphakama kwayo ngeke kubuyisele imingwane engazange ithathwe.

Ingabe ngingakwazi ukuxhuma ihele kwikhasi le-web ngemuva kokushintsha MP4 kuya ku 3GP?

Akunakuqondile. MP4 idlala ngaphakathi kwelayini ngayinye yesiphequluli; 3GP ayisebenzi, ngakho ikhasi elifakazelayo libuyela emuva ku-download link noma ku-player frame engenanto. Uma ihele lizosetshenziswa kwi-website, gcina i-MP4 kwi-web futhi uthathe i-3GP njenge-archive noma uhlela ikhophi.

Yini i-codec yevidiyo i 3GP isebenzisa?

Kuxhomekeka ku 3GP isiqoqi. MP4, MOV kanye MKV output ukusebenzisa H.264, okuyinto idlala ku ngempela wonke ifoni, ibrowser kanye TV. WebM output usebenzisa VP9. AVI, WMV kanye MPEG output ukusebenzisa codecs older labo amafomethi akhiwa.

Ingabe umsindo wami uzophila ukuguqulwa MP4 kuya ku 3GP?

Yebo, umsindo omkhulu ohambayo udlula, uphinde ukhodwe ku-codec i-3GP idlala, isibonelo, i-AAC ku-MP4 ne-MOV noma i-Opus ku-WebM. Ukuguqulwa okuningi kugcina kuphela umsindo owodwa (omunye onezintambo eziningi), ngakho-ke izilimi ezihlukile nezibuyekezo zilahlekile. MP4 kuya ku-MOV, ne-AVI, WMV, MPEG, FLV, VOB noma M4V kuya ku-MKV, gcina wonke umsindo ohambayo.

Ingabe ngigcina ifreyimu yesiqalo uma ngiguqula MP4 ku 3GP?

Yebo. Izinga lefreyimu ligcinwa ngaphandle kokuthi ushintshe: i-24 fps MP4 ihlala i-24 fps ku-3GP. Uhlelo lwezinga lefreyimu lingaguqulwa libe yi-60, 30 noma i-24 fps. Lishintsha kuphela inani; alisusanga ividiyo noma lisuse i-3:2 pulldown.

Ingabe ubukhulu behele bushintsha kanjani kusuka ku MP4 kuya ku 3GP?

Kuxhomekeka kulokho okwenzekayo kuvidiyo. MKV MP4 noma MOV nge default izilungiselelo ikhophi ividiyo umfutho engashintshiwe, ngakho ubukhulu ihlala eduze komthombo. Ezinye izibini eziningi ziphinde zikhophi: a high-bitrate MP4 ngokuvamile ephuma ncane, ngenkathi ekhona kakhulu ecindezelwe eyodwa ingakhula. Ifayela elincane ngaphansi Quality inikeza inzuzo encane, futhi H.265 ku Codec isilungiselelo (MP4, MOV ne MKV) ngokuvamile ncane kuna H.264 ku quality efana kodwa idlala ku amadivayisi ambalwa.

Ingabe ihele 3GP lidlalwa ku-iPhone, Android, ne-Smart TVs?

MP4 ne H.264 idlala kunoma iyiphi ifoni, i-browser kanye TV. MOV ne H.264 idlala kunoma iyiphi idivayisi Apple kanye TVs eziningi kodwa hhayi kunoma iyiphi ifoni Android edala. MKV idinga app ezifana VLC ku-iOS, futhi WebM ikhaya e-browsers. Akukho isisetshenziswa preset kule khasi, ngakho khetha ifomu injongo isisetshenziswa sakho sisekela. Amafayela we-3GP ancane futhi aguqula ikhodi ku-hardware encane kakhulu engingacabanga ngayo, ngakho-ke amafoni akhethekile nama-handset aphansi-end ahlala erekhoda.

Ingabe kuthatha isikhathi esingakanani ukushintsha i-MP4 yevidiyo yehora elilodwa ibe yi-3GP?

Akukho isikhathi esiqinile: sixhomekeke kude, isixazululo kanye nefomethi efanelekayo. Ukuguquka kuqhutshwa kumaseva ethu we-CPUs ngesoftware encoders; akukho GPU ukukhawulelwa. MKV kuya MP4 noma MOV ngezinhlelo ezijwayelekile zikopishe umsinga wevidiyo futhi zisheshe. Ukuphinda-ukuguqula ku-H.264 kuthatha isikhathi eside, futhi WebM (VP9) yinjongo ehamba kancane, izikhathi eziningi ezihamba kancane kune-H.264 ezivivinyweni zethu.

Yini isixazululo esiphezulu esixhaswe yi MP4 kuya ku 3GP?

Umguquli awunakho ubukhulu obuphelele obuphelele; umkhawulo ubukhulu bokufaka obuvunyelwe kuhlelo lwakho, futhi ubukhulu buhlala bukhona uma ungakhethanga 1080p, 720p noma 480p. Akukho HDR ukucubungula noma ukumayelana nombala. Uma ividiyo ikhophiwe (MKV kuya MP4 noma MOV ngezinhlelo ezijwayelekile), HDR10 idlula ngaphandle kokuchofoza. Ukuphinde ubhale kabusha i-HDR10 mastering metadata, futhi ngekhwalithi, ubukhulu noma i-frame rate ilungiselelo ezinye izibini zikhuphula ividiyo kumbala we-8-bit, ngakho-ke i-HDR MP4 ingabonakalisa i-washed out.

Ingabe i-MP4 yami yevidiyo imfihlo ngesikhathi sokuguqulwa ku-3GP?

Yebo. Amafayela MP4 alayishwe phezulu aphathwa kumaseva ethu okuguqula, akukho muntu obhekana nawo, futhi angeke ahlukaniswe. Ukulayishwa kanye nokuguqulwa kwe 3GP kususwa ngokuzenzakalela cishe amahora angu-24 ngemuva kokuguqulwa, okushiya isikhathi sokulanda imiphumela. Bona /privacy/ ukufinyelela kunqubomgomo egcwele.

MP4

Ifomethi yesitsha se-MP4 ingagcina ividiyo, umsindo, imibhalo engezansi, nezithombe kufayela elilodwa ngokucindezela okuhle kakhulu.

3GP

I-3GP iyifomethi yesitsha semultimedia eyenzelwe omakhalekhukhwini be-3G. Ingagcina idatha yomsindo nevidiyo futhi ivamise ukusetshenziselwa ukudlalwa kwevidiyo yeselula.